This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/LAB/capital-change-brief"
Use Arkolith's capital_change_brief for LAB. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Casdin Capital, LLC | $81.6M | 88.8M | —Held | Q1 2026 | |
| 2 | VIKING GLOBAL INVESTORS LP | $53.9M | 58.7M | —Held | Q1 2026 | |
| 3 | BlackRock, Inc. | $22.8M | 24.8M | ▼−3.0% Reduced · −760K sh | Q1 2026 | |
| 4 | Long Focus Capital Management, LLC | $14.7M | 16.0M | ▲+26% Added · +3.3M sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $11.8M | 12.8M | ▲New +12.8M sh | Q1 2026 | |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $6.7M | 7.3M | ▼−1.8% Reduced · −131K sh | Q1 2026 | |
| 7 | STATE STREET CORP | $6.0M | 6.6M | ▲+1.1% Added · +74K sh | Q1 2026 | |
| 8 | Neuberger Berman Group LLC | $4.3M | 4.7M | ▲+0.7% Added · +33K sh | Q1 2026 | |
| 9 | MORGAN STANLEY | $2.7M | 2.9M | ▼−62% Reduced · −4.8M sh | Q1 2026 | |
| 10 | BARCLAYS PLC | $2.4M | 2.6M | ▼−15% Reduced · −463K sh | Q1 2026 | |
| 11 | NORTHERN TRUST CORP | $2.3M | 2.5M | ▲+2.7% Added · +64K sh | Q1 2026 | |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.2M | 2.4M | ▼−3.7% Reduced · −93K sh | Q1 2026 | |
| 13 | VANGUARD PORTFOLIO MANAGEMENT LLC | $2.2M | 2.4M | ▲New +2.4M sh | Q1 2026 | |
| 14 | MILLENNIUM MANAGEMENT LLC | $1.9M | 2.1M | ▼−38% Reduced · −1.3M sh | Q1 2026 | |
| 15 | VANGUARD FIDUCIARY TRUST CO | $1.8M | 1.9M | ▲New +1.9M sh | Q1 2026 | |
| 16 | Sone Capital Management, LLC | $1.6M | 1.8M | ▲New +1.8M sh | Q1 2026 | |
| 17 | Slate Path Capital LP | $1.5M | 1.6M | —Held | Q1 2026 | |
| 18 | CITADEL ADVISORS LLC | $1.1M | 1.2M | ▲+14% Added · +149K sh | Q1 2026 | |
| 19 | GOLDMAN SACHS GROUP INC | $867K | 943K | ▲+79% Added · +417K sh | Q1 2026 | |
| 20 | AQR CAPITAL MANAGEMENT LLC | $858K | 933K | ▲+122% Added · +514K sh | Q1 2026 | |
| 21 | Bank of New York Mellon Corp | $705K | 767K | ▼−3.4% Reduced · −27K sh | Q1 2026 | |
| 22 | Qube Research & Technologies Ltd | $648K | 704K | ▲+224% Added · +487K sh | Q1 2026 | |
| 23 | Nuveen, LLC | $608K | 661K | ▲+0.6% Added · +4K sh | Q1 2026 | |
| 24 | STALEY CAPITAL ADVISERS INC | $581K | 632K | ▲New +632K sh | Q1 2026 | |
| 25 | Rockefeller Capital Management L.P. | $485K | 527K | ▲+19% Added · +83K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 20, 2026 | Mackay Sean | SVP & Chief Business Officer | Grant (A) | 500K | $0 |
| Jun 18, 2026 | ELOI FENEL M | Director | Grant (A) | 99K | $0 |
| Jun 18, 2026 | ELOI FENEL M | Director | Grant (A) | 176K | $0 |
| Jun 18, 2026 | HIBBS KATHY L | Director | Grant (A) | 99K | $0 |
| Jun 18, 2026 | HIBBS KATHY L | Director | Grant (A) | 176K | $0 |
| Jun 18, 2026 | Carey Thomas D. | Director | Grant (A) | 99K | $0 |
| Jun 18, 2026 | Carey Thomas D. | Director | Grant (A) | 264K | $0 |
| Jun 18, 2026 | Witney Frank | Director | Grant (A) | 99K | $0 |
| Jun 18, 2026 | Witney Frank | Director | Grant (A) | 176K | $0 |
| Jun 18, 2026 | Casdin Eli | Director, 10% Owner | Grant (A) | 99K | $0 |
| Jun 18, 2026 | Casdin Eli | Director, 10% Owner | Grant (A) | 176K | $0 |
| Jun 18, 2026 | Cox Troy | Director | Grant (A) | 99K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 36 funds | $17.2B |
| AMAZON.COM INCAMZN | 36 funds | $13.7B |
| ADVANCED MICRO DEVICESAMD | 35 funds | $2.6B |
| UNITEDHEALTH GROUP INCUNH | 35 funds | $1.9B |
| SALESFORCE INCCRM | 35 funds | $1.5B |
| HONEYWELL INTERNATIONAL INCHON | 35 funds | $906.7M |
| DUPONT DE NEMOURS INCDD | 35 funds | $157.4M |
| ALPHABET INC-CL AGOOGL | 34 funds | $11.3B |
| BROADCOM INCAVGO | 34 funds | $8.6B |
| META PLATFORMS INC-CLASS AMETA | 34 funds | $8.4B |
| TESLA INCTSLA | 34 funds | $7.1B |
| VISA INC-CLASS A SHARESV | 34 funds | $5.3B |
Ranked by how many of LAB's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for LAB. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.